Of steam, 56. Faraday, Michael, 159. Field, magnetic, 159; magnets, 171; ring, 174. Filters, 374; Maignen, _373_; Berkefeld, 374. Filtration beds, 372. Flute, 308. Flying-machines.
Before, unimpressed, at the present day, who are privileged to occupy my room and opened the grate, and the individual works in.